This affidavit is made voluntarily for the purpose of establishing the fact that my signature is a forgery. 7. Do you know who forged your signatures?Must be at least 18 years old. 2. Fill in the blank Notice of Claim form formatted to comply with all Utah recording and content requirements. Read more about the safety measures the SLCo's Clerk office takes to ensure the integrity and privacy of the electoral system. An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions. After filling out your forms, file them with the justice court where your case was filed.